Bed



M. F. BAYER Jan. 13, 1931.

BED

\ Filed June v22, 1925 3 S eets-Sheet 1 Jan. 13, 1931.

M. F. BAYER F'iled mine 22, 1925 3 sheetse-sheet 2 Jan. 13, 1931. M. F. BAYER BED Filed June 22, 1925 3 Sheets-Sheet 3 j ,b/ 32 w a 6 a 5 .1 o .1 o L M 6 W E 4 H y/ I110 6 .A J k w q J 7 mm W 5 Zia/0 3 c 1% F... WI l6 ,i r p r .E. w.

.Patented Jan. 13, 19 31 mane Application. filed. June .22, .1925. .Serial No. {38,611.

i Thisinvention relates to. improvements'in bed structures and more'particularly-to that type of bed known as aroller bed. Such beds are used to out down the number ofrooms necessary for agivenrequirement;by enabling the occupant" of a roomtoiuse any room in the night-time as ahed-room, and in m or other-space, to use that same room as a living room or for otherpurposes.

".l'l he principal object of this invention is to 5 provide a safe and efficient light weight roller bed which may be folded into small compass v with a minimum of effort. r

Other objects and advantages of this invention willbe apparent when reference. is bad to the following specification'when' considered in connection with the accompanying 2c drawings which illustratev a selected embodiment thereof, inwhich improved bed in the course of beinggfolded or unfolded. I

'Fi 2 is a side elevation showing the bed in position. for use. i "Fig. 3 is also a side elevatiombut showing ,the bed in its folded position wherein it'may .be easily rolled away and stored. as 4 is a section on the line4c4c of.Fig.f3

and

able risers'8 secured to the ends of the side bars 5. p

.The endfralne 3,- havingfolding legslO is secured to one end of. the bed frame and provides one of the supports therefor. Suitable castersmay be provided invthese legs to facilitate moving'of the "bed when it is inunfolded position. 'The base 2 comprises side frames llconnected by cross members 12, 13 and 1e, and is provided with easy-running 5C casters'15. The top member 16 of each of i Fig.- 5isa section on the line 55 of Fig; 2.

receive rollers 1818-journalledon axially horizontal pins; which are fixed in the side :bars5. By "means? of the rollers 1 8-'-18*the bed frame l 'is' thus "pivotally and slidably gconnected to" the base' 2.- theday-time; by folding-the bed, to render i it easily rolled out of the way, .intoacloset X U-shaped' memben having upwardly ektendingarms 21 21,; and an integral horizorital cross'member' 22; 'i'sfpivotal-lyconnect- .ddfihf-23423 tOtheEbaseZ' i "the side frames llfis arched and'of; channel Y "shape so as'to'provideguide-ways l7- fi to "plurality-of springs" 19' are tensioned be- 1 tween the cross member 20' of the *bed frame and the cross member 13 of the base.

lTheen-dframe f is pivotally connected by "pivots 26i26 to the, posts '2727"which are .secured to therisersSJ liinks 28'28extend 1 Fig. 1 is a perspective view showing my between pivots 29 on the sides of'the end frame and. pivots 30 on 'the'extended'ends 31 of the"arms"2l -21; 1 f

' The aforementioned .folding" legs 10, are

side bars 5 and having their lowerends con- "nected'topivots 34- 34'at the'upper ends of The" links "10' is achieved bv-imeansiof the-rods 36 36,

which are-pivotally connected at oneend to the'pivots 34- 3%]? the toggle members, and

at" their other 'endiare '.pivotally connected at 37-37to the arms" 21. The pivotal conneccontrolled by. means. of jointed toggle -mem- "hers comprising-upper links32 32, having their upperends -connected"at33'33 to the tion 37- 37 is preferably located intermedi ate the"pivotfpoints"23' andQA- on the-armsQl "at apoint,"which when the bed is folded; will 'givethe' necessazry travel to the rdd36 to bucklethe above described toggle members, andthereby'obtain the 'desired'folding action of the" legs 10.

*ln operationywhen the bed is tofbefolded from the-position shown in Fig. "2 to the posi 2-1011*"shown in Fig.l'3, the endof theibed I without some special arrangement, it has been difficult to apply counter-balancingor however, of the tension springs 19,

The bed frame 1' pivots on the rollers '18 l8.in the guide ways 1717. and on the pivots 2l-2l in the arms 2121, and as the frame is raised at its foot end, the pivots 2e are also raised in an are described about the pivot points 23, thereby causing general when it is folded to its vertical position (Fig.

3) the end frame l will be positioned within" the base 2.

Clamps 40 are provided to securely hold 'theomattress and other, bedding in'iplace at one end, and at the other end the end frame 4 serves that purpose whenthe bed is in its folded position, this being achieved through the medium of connecting links :28 and-the extended ends 31 of the arms 21. .As the bed is folded, the extended .ends 31, acting as lever arms pivot on the pivots Qt-24 and .pull the links28'28 in such a manner that .the' frame his folded on the pivots 26-26 until it assumes the position shown inFig. 4, where it may bereadily seen that itwill form a receptacle and a holding member: for

pillows and other-bedding, and also hold the mattress in position. The links 28 are preferably curved as shown, so that the surface of the bed will be free from obstructions at the sides.-. i I 7 Lugs ll on the bed frame engage stops 38 at the base to limit the movement of the bed frame at that point and the travel of the rollers 1818 is limited by end walls 39- 39 of the guide-ways 17-17. I 1 l The bed frame is retained in foldedposition due to the fact that the center of gravity of the bed frame, when in folded position, is located a substantial distance behind a vertical plane passing through thecenters of the I pivotal connections betweenit and the base.

,W'hen in folded position theweight ofthe tion with the base. but this tendency. is overcome by means of the stop 38 on the base and lugs 41 on the frame.

I-Ieretofore, with beds of this general type,

elevating springs of suflicient power to furnish the required assistance in balancing the extended portion of the, structure during the folding operation. This has been due to the fact that the base of the bed must necessarily be of quite small dimensions in order to permit the bed when folded to enter the doorway of the closet or compartment in which it is stored when not in actual use. Obviously,with a base of such small dimensions and 'of comparatively light weight, heavy construction being undesirable in a portable bed,

if springs of more than a certain power be employed, any additional,power will simply tend to liftthe rear portion of'the base from the ground, and Willperform no useful of a limited amount of strength, some efiiec- \tive counter-balancing means must be emelevatlon of the ent1re-bedframe so that pl'oyed and, in most cases, this has been in the form of a very heavy counterweight, which, of course, makes the structure Very [heavy to move around, thus reducing the portability of the bed. Other inventors have proposed the .use of extension arms which, when the bed is unfolded, may be projected either manually or automatically outwardly of the base so as to'increase the effective dimensions of the base and permit the 7 use of springs of suflicient power. H it Wlll be manifest that with my arrangement, undesirable counterweights, or in the alternative, extension arms are not required. lVith my" construction, the bed frame is so cennected to the base thatwhen the device ,is unfolded, in addition to the usual swinging movement of the bed frame on its base,

there is' in efiect a longitudinal o1 sliding movement thereof which causes the bed frame to. move a substantial distance inwardly of the base. Thus the base of the structure in effect has a relative movement outwardly and under the bed frame when the latter is unfolded, and the center of gravity of the entire structure, without the aid of counterweight and without the aid of any foldable projections or extensions, is always maintainedsubstantially within the area of the fixedbase. Thus, springs of any desired power may be employed to balance the weight of the overhanging portion of the bed frame and parts carried thereby; I

It will be seen also that T secure this very desirable result by use of a structure which has the additional feature that the danger of accidental folding of the device when extended, due to excess of weight being my posed near the head end of the bed frame, is entirelyeliminated. This is due to the fact that the rollers 18 are positioned quite .close to the head end of the bedstead and rearwardl'y of the upper link pivots and they are supported on the fixed upwardly curved track 17 so that in the folding operation the initial movement of the rollers is upward. The elevating springs,.when in the position shown in Fig. 2, have practically no folding effect,

as they have no substantial'tendency to cause a depression of the *llQild end of the bedstead. In such completely extended orunfolded position, with thearrangenient shown, the weight of the bed frame is, ina sense. slightly unbalanced sothat the foot end of the bed will be held solidly on the floor. This incomplete balancing of the structure in itself, largely eliminatesfanyitendencytoyvardsintermediate the 'base connection and :frame collapsing or. fo'ldingof tlie bed doeitof L'n'i nconneotionthereof; V 7 position of excess Weight on the headzenr 5. In 'a"roller=bed strnotu rm the eombinawr; Hod'ever snch innbalancingfhas 110 'serious' tion of airigid-ibase of front to rear: dimenk or detrimental "efiec'tiin foldingfof the' bed--sion-small enough'to'permit saic lvbasedo enter si ce when'the bed in itscompletely ..,e"x "--an ordina ry g doorweyg aflink havingits low-wa. tended positiompthe operator is inthvbest, er end-pivoted to-said' base e bedx frame pin- V possibleposition to e'xerten upwardiwpiil'lorf oted=to the1npper endofsaid link, abalanc: the foot-end ofthe bed. As SOOITLZIS the rem-2 ingspringjforassisting in folding of the, end isreleva ted a feminches fromthe horizoi'v' bed'f-rame and means foroontrol li-ngthe.pive: tal, the li'elative"positionflof thesprings'andotal' movement of said: bed frame. on said. pivots changes so thatfd'uringthe {i'e'maind-er link when said arm rocksonits :pivot,ttl1e of the folding movement,"the'iveight of the link being =arranged to swingthe bedarrearbed frame is'properly balanced andno for warelly of the-base to canse'therear-end of their eonsiderabl'eFforoe;is reqniredto COIHJ'Z thekge'dto project substantially. beyond :the 4 pletethe folding'of thes'trnctnrew 5 basewhen 'the bed is unfolded; said controlza I claim as'myinvention ling'means'comprising awroll'er andza'genem 1. A bed comprisin a bed" -rm1m-am1e ally horizontalntraok oneprovided"on thew; base; an arm pivotally:connected'at one endbase andthe' other on thezbedlfrainep to said base randsat its-othen end, to "said T 6. Ina roller v-loed:constructiom;theicome"' 5 fra1nc,"1egS PiVQtallY'nwnntedfiat" o'ne'end-of bination' of a base'w of Weightzsnfiicient': onlW' said bediframe; a toggle'connection between for the' requiredstructural strengthyalink said legs andframo; a linkioperativeiyicon -hav'ing itslower end-pivoted tO'thej'fOIWflId nectingsaidioggleifith-shidarm; endof said:base,- a be'd: frame pivoted to they,"

ith suitable mattressisupporting nlean-sg-ataltra'ok in'aznelevatedpositionon-said-base, base hai ing snitable caster-s secured thereto" a pivot mounted onsaidbed framexat-a pointa balancing"springiconnected?bet-ween said i'earwar 'dly 'iof the connection betweenwthe bediframe"and-basegapivotsecured to-"s'aid framewandxthe link anon-1- substantial: dis-{3. bed frame, a guido wayon said'ba se for 'sa-irb tanee' 'forwa'rdnof the "reamendt'of the frame pivot; an arm pivotally connected "at one end andzcooperating with said track to move the :1 to said base and-at its'other *end t-o said= uppemendrof said linlr'rearwardlyq'vhen the 1 bed frame; 9 Pl y --bed:.=is' unfolded so as to -mai ntai-n theyoenteri of saidfibed"frame; a toggle'connectio11dJ'e-' of gravityof the :combi-ned structure Within 3- tween said leqjs and said-bed frameg-a -li1 1k--' operatively" connected 'btn een said toggle i eonnectednbetween'said rbase and, ai point on 1- s and said fi m; "an e11 1 p r ljv saidnfr'aine iintermediate'zsaid pivots; inountedrat'the other-"end-tof said-bed rraale, 7. In {3"5101181?bGdiCOIlSlJTIlCtlOIl;'lZhQ'flOlTli a lever:n-meXtending:from the firstmen binatioirfof aa baseg ai link having-its low'eiw- I :tioned' arnrsandaa link operatively "connected between the last'isaid end ffiamehnnd- -l'i 'e'r "a bed frame pivoted to the upperend-of'said 4 arm. 1ink; :an 'npW ardlyvwrched, genera11 ,r-h0riz0n:-;

3. A ed comprising berlvfraiiie and tal-.tn'acks=in=a=n elevatedposition- E0111 said-ba-swm haw? pivzdtanylbolmected'afi once' endw'a Divot" mounted-on said: bed-iframei-at a legs pivotally. nonnted at 'one endof said? the frame'and the lenk-and-a substantial dis-.1 frame aatoggle ebnne'oti011 ,betwee aid i tan'cetiforwand 'of: the vrear end of the frame 2. A be'dlcoinprisingaqbe'd frameprovidednpperiencbof said link',"a'generally.horizone;

-the*'iarea:- :of. the ibiasegiiand a balancing spring a ,1 on

.to said basea-nd atits othen e-nd'td-saidfraine; --pointr;rearwardlyof the {connection between @15 L andcooperating mvith saidtracknandi a bal-x ancing rspring connected between said base and a :point on said frameintermediate said-T 7 315;

pivots 8. "-I-n a.|--r0ller bed-structure; A the zoombina tion iof-ealrigidthase offront to reantdlmen-e, sionszsmadllenon'gh toipermlt-said base to en-. a

4. A bed comprising'a bed frame and a base, an arm pivotally connected at one end to said base and at its other end tosaid; bed frame, a folding frame pivotally connected to one end of said frame anda link pivotally connected at one end to said end frame and at its other end to an extension of said arm at a point spaced outwardly from its frame pivot, legs pivotally connected at the other end of said bed frame, a toggle connection between said legs and bed frame, a rod pivotally connected at one end to said toggle and at its other end to said arm at a point lower endpivoted tothefront-of saidhbasepai. bed frame 1 llfilflifl-ll-Y when in upright posi-.- tion;located withinthe-area of the"base-and pivoted to the upper endofsaidilink; a-shift-. 1

apoint on said-bed rframemearwardlyspaced i from: theu-uppei-i pivot" of said link and: substantially...spaced from the re-ar end of theframev'fortoontrollingfswingingunovementof tel-an o1:dinary doorway, a, linkl1aVil1g-itS,.12n

ing;pivotal conneotion between, said -baserand theiframe on=the.'1ink' pivot during the fold-:1: 1 7

being such that when the bed is eXtended,"the

upper: link pivot is in a'position' considerably in the'rear of the base pivot and therear end of said f ame projects a substantial distance rearwardly of the base,,and spring means tending to. elevate the front end of the bed frame,'when the bedis being" folded, said shifting pivotal. connection comprising a roller on the bed franieand an elevated generally horizontal track nieinberfon atmg with said roller.

9; In aroller bed structure, the -C0l1lblIltL- tion of a rigid base, of. front to 'rear dimensions small enough to permit said base to enter an ordinary doorway, a l nk having its lower end pivoted to the front of said base, a 7

bed frame normally when in=upright position located wlthin the area of the base and pivoted to the upper end of said link,

point on saidbedframe rearwardly spaced from the upper pivot of said link-and substantially spaced from the rear end of the frame for controlling swinging'm'ovement of the frame on the link-pivot during the fold- 7 ing' and i unfolding operation, the arrangementbeing such that when the bed 1s extended. the upper link pivot is 111 a position con siderably int e rear of the base pivot and the-- rear endof the said frame projects'a substantial distance rearwardly of the base. and spring means tending to elevate the front end of the bed frame, when the bed is being folded, said spring being connected to said bed frame intermediate the upper link pivot point and the shifting pivotal point, said shifting pivotal connection-eomprisin g a roller on the bed frame and an elevated generally horizonof said base, a bed frame having its head or lower end of weight not materially greater I than is required for purposes of structural strength and rigidity and normally,'whe n in upright position, located within the are'a of the base, said frame being pivoted. to the upper end of said link, a shifting pivotal connection. between said base and said bed frame spaced rearwardly from said upper link pivot for controlling swinging movement of the frame on the link pivot during the folding mg and unfolding'operati on, the arrangement? said base reopen 7 a shifting pivotal connection between said'base and a wardlyiso as to project asubstantial distance ,rearwardly of the base, so that the center I -of gravity of the combined structure falls within the area of the base,and spring means tending to elevate; the front end of the bed frame, when the bed is being'folded', and powerful enough to adequately counterbalance the overhangof the bed when thei'latter is extended horizontally. v V y 4 11. Ina roller bed structur the combination of arigid base of weight not materially -greaterthan is required for purposes of struc turalstrength and rigidity, and of front to rear dimensions smallJenOu'gh to permit said base toenter an ordinary closet doorway, a link having 1ts lower endpivoted to the front of said base, a bed frame having its head orlower end of weight not materiallygreater ,than is required for purposesof structural strength and r1g1d1ty and normally, when-1n upright position, located within the area of the base, said frameheing pivoted to :theupper'end of said link,'a shifting pivotal connection between said base and said bed frame spaced rearwardly from said upper link pivot for controlling swinging movement of the frameon the link pivot during the folding and unfoldlng 'operat1on, the arrangement being such that whenthe bed is extended from vertical to'horizontal position, the upper link pivot is moved rearwardly to a position considerably in the rear of the lower link pivot and the rear end ofsaid frame is moved rearwardly so as to project a substantial distance rearwardly of the base, so that the center of gravity of the combined structure falls with- V in the area of the base, and spring means ten'dingto elevate the frontend of the bed frame, when the bedris being folded, and

powerful enough .tov adequately counterbalance the overhang ofthe bed when the latter is extended horizontally, said shifting con nection beingso arranged thatwhen commencing to fold-the bed, downward movement of said connection is prevented, thereby stabilizing the structure in respect of loads ap} plied to the head end of the bed.'

I f MATTHEl/NF. BAYER.

and unfolding operation, the v arrangement f being such that when the bed is'extended from a vertical to horizontal position, the upper link pivot is moved rearwardly to a position considerably in the rear of the lower link pivot and the rear end of said frame is moved rear- 

